Jim Mortenson
Cambridge, Massachusetts, United States
Summary
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RockstarJames Mortenson is a Fractional CTO and investor based in San Francisco with nine years of experience building low-latency, mission-critical distributed systems. He’s held senior engineering and R&D roles at HubSpot and Salesforce, focusing on streaming and data platform infrastructure, and now blends hands-on technical leadership with venture and founder activity at Clay Street Ventures and Koomba. Known for shipping dependable backend systems at scale, he pairs an Operations Research MEng from Dartmouth with practical API and streaming expertise honed across product-stage companies. James moves fluidly between architecting resilient distributed systems and advising startups on technical strategy, often stepping into roles that require rapid stabilization and scale. An interesting throughline: he transitioned from API-focused engineering into distributed systems R&D, giving him rare depth across both surface-level developer APIs and deep infrastructure concerns.
9 years of coding experience
Github Skills (11)
spring-boot10
java9
grpc9
workflow-management9
javascript9
workflow-engine8
workflow-automation8
distributed-systems8
react-component7
microservices7
react-components4
Programming languages (2)
Github contributions (5)
jimmort25/PTCLoadApp
Nov 2017 - Jan 2018
Contributions:8 pushes, 1 branch in 2 months
jimmort25/jimlang
May 2019 - Jul 2019
Contributions:8 pushes in 1 month
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